描述更新区域的结构。
在不需要更新全部自定义渲染纹理时使用 UpdateZones。它们根据纹理表面内的位置、大小和旋转加以定义。为同时更新纹理的不同部分,可设置多个更新区域。 另请参阅:CustomRenderTexture。
needSwap | 如果为 true,并且该纹理接受双缓冲,则会发出在下一次更新前交换缓冲区的请求。否则将不交换缓冲区。 |
passIndex | 着色器通道,用于更新此更新区域的自定义渲染纹理。 |
rotation | 更新区域的旋转。 |
updateZoneCenter | 自定义渲染纹理中更新区域中心的位置。 |
updateZoneSize | 更新区域的大小。 |
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